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Recurrent Urolithiasis Revealing Primary Hyperparathyroidism in a Nephrology Department. Case Rep Nephrol 2024; 2024:1265364. [PMID: 38419822 PMCID: PMC10901575 DOI: 10.1155/2024/1265364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 01/12/2024] [Accepted: 01/29/2024] [Indexed: 03/02/2024] Open
Abstract
Background Urinary lithiasis constitutes a recurrent pathology affecting a relatively young population. The risk of progression to chronic renal failure and the cost of treatment are the most important issues. Primary hyperparathyroidism (PHPT) is responsible for urolithiasis and nephrocalcinosis in 7% of patients, and it represents the 7th cause of urolithiasis in Tunisia. Unfortunately, it remains an underdiagnosed pathology although it is curable. We aim to determine the clinical, biological, therapeutic, and evolutionary particularities of urinary lithiasis associated with PHPT in a nephrology setting. Methods This is a monocentric, retrospective, descriptive study which took place in our nephrology department during the period from January 2010 to January 2023. Ten patients were included. All of them underwent blood and urine tests and a morphoconstitutional study of the urinary stones if possible. Results The median age at diagnosis of PHPT was 42 years (34-54). The median time from the onset of kidney stones to the diagnosis of PHPT was 6.2 years (1-17). The male/female gender ratio was 0.66. Five patients had hypertension, two patients had obesity, one patient had diabetes, and three patients had urinary tract infections. Kidney stones were bilateral in eight cases and unilateral in two cases. Nine patients underwent urological intervention: surgery in 5 cases associated with nephrectomy in one case, extracorporeal lithotripsy in 4 cases, and percutaneous nephrolithotomy in two cases. The diagnosis of PHPT was retained with high or uncontrolled PTH associated with hypercalcemia in 8 cases and normocalcemic PHPT was found in 2 patients. Two patients had parathyroid adenoma and one patient had mediastinal adenoma. Radiology exploration was normal for the others patients. Surgery was performed in 7 patients and histology revealed an adenoma in 5 cases and hyperplasia in one case. The predominant urinary risk factors in our study were hypercalciuria in 6 cases and insufficient diuresis in 4 cases. Conclusion This study underlines the role of the nephrologist in the exploration of urinary lithiasis and the prevention of recurrences, especially as PHPT is a curable aetiology of urolithiasis and affects a relatively young population. The determination of the epidemiological profile of patients with stones associated with primary PHPT and lithogenic risk factors allows the primary and secondary prevention of stone formation.
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Uncovering the Spectrum of Hemophagocytic Lymphohistiocytosis: A Nephrology Department's Analysis of 14 Cases. CLINICAL MEDICINE INSIGHTS-CASE REPORTS 2023; 16:11795476231210137. [PMID: 37920369 PMCID: PMC10619340 DOI: 10.1177/11795476231210137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 10/10/2023] [Indexed: 11/04/2023]
Abstract
Introduction Hemophagocytic lymphohistiocytosis (HLH) is a disease of multi-organ dysfunction due to excessive immune activation causing widespread inflammation and tissue destruction. It is a severe condition associated with high morbidity and mortality. Early identification is crucial for prompt treatment. The objective of this case series is to underscore the intricacy of managing HLH in individuals with renal dysfunction. Methods This is a retrospective study of patients diagnosed with HLH in a nephrology department over a period of 30 years. We retrospectively reviewed the medical files by applying the Revised HLH-2004 criteria. Results Among the 14 female patients included, the mean age was 45.2 years (range 23-78). Nine patients presented with sudden onset of fever and chills. Physical examination revealed purpura in 3 cases, hepatomegaly and splenomegaly in 6 and 5 cases respectively, and peripheral lymphadenopathy in 1 case. Hemorrhagic complications were observed in 5 cases, hypertriglyceridemia in 9 cases, and hyperferritinemia in all cases. Hypothyroidism was observed in all cases, and impaired renal function was detected in 11 of them, with 5 experiencing it as a result of lupus nephritis, and 1 case attributed to pre-eclampsia. Hemophagocytosis was confirmed through sternal puncture in 11 cases. Treatment involved etiological therapy with corticosteroids and immunosuppressants and/or anti-infectives. Intravenous immunoglobulins were administered in 6 cases, while 2 cases required coagulation factor transfusions. Unfortunately, 9 patients did not survive. Conclusion The study highlights the need for increased awareness and prompt recognition of HLH, particularly in patients with associated renal complications.
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Primary Hyperoxaluria Type 1: Clinical, Paraclinical, and Evolutionary Aspects in Adults from One Nephrology Center. Int J Nephrol 2023; 2023:2874414. [PMID: 37521011 PMCID: PMC10372328 DOI: 10.1155/2023/2874414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/08/2023] [Accepted: 06/21/2023] [Indexed: 08/01/2023] Open
Abstract
Introduction Primary hyperoxaluria type 1 (PH1) is a rare and inherited condition of urolithiasis. The aim of our study was to analyze clinical, paraclinical, and evolutionary aspects of PH1 in adult patients in our Nephrology department. Methods We conducted a retrospective single-center study between 1990 and 2021. We collected patients followed for PH1 confirmed by genetic study and/or histopathological features of renal biopsy and morphoconstitutional analysis of the calculi. Results There were 25 patients with a gender ratio of 1.78. The median age at onset of symptoms was 18 years. A delay in diagnosis more than 10 years was noted in 13 cases. The genetic study found the I244T mutation in 17 cases and 33-34 InsC in 4 cases. A kidney biopsy was performed in 5 cases, on a native kidney in 4 cases and on a graft biopsy in one case. The analysis of calculi was done in 10 cases showing type Ic in 2 cases. After a median follow-up of 13 years (1 year-42 years), 14 patients progressed to end-stage chronic renal failure (ESRD). The univariate study demonstrated a remarkable association with progression to ESRD in our population (44% vs. 56%) RR = 13.32 (adjusted ORs (95% CI): 2.82-62.79) (p < 0.01). Conclusion Progression to ESRD was frequent in our series. Early diagnosis and adequate management can delay such an evolution.
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Decoding Hypercalcemia and Renal Stones in a Young Adult: Could it be Dent's Disease? CLINICAL MEDICINE INSIGHTS-CASE REPORTS 2023; 16:11795476231182591. [PMID: 37435354 PMCID: PMC10331178 DOI: 10.1177/11795476231182591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 05/31/2023] [Indexed: 07/13/2023]
Abstract
Dent's disease is a rare genetic kidney disorder characterized by proximal tubular dysfunction, nephrocalcinosis, recurrent nephrolithiasis, and chronic kidney disease. Hypercalcemia is a rare finding in this disease. In this report, we present a case of possible Dent's disease in a young adult male with hypercalcemia and chronic kidney disease. The diagnosis was evoked based on the presence of low-molecular-weight proteinuria, kidney stones, and renal failure. This case underscores the significance of considering Dent's disease as a potential diagnosis, even in patients with chronic renal disease who exhibit hypercalcemia. It also emphasizes the importance of regular monitoring and management of patients with this condition to prevent further complications.
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La microangiopathie thrombotique dans un service de néphrologie : une série tunisienne de 45 cas. Nephrol Ther 2022. [DOI: 10.1016/j.nephro.2022.07.368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Atteinte neurologique chez une patiente lupique en poussée rénale : neurolupus ou vascularite cryoglobulinimique ? Nephrol Ther 2022. [DOI: 10.1016/j.nephro.2022.07.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Analyse urinaire chez les patients ayant une hyperparathyroïdie primaire dans sa forme lithiasique : étude tunisienne. Nephrol Ther 2022. [DOI: 10.1016/j.nephro.2022.07.327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Le syndrome des antiphospholipides en milieu néphrologique : à propos de 10 cas. Nephrol Ther 2022. [DOI: 10.1016/j.nephro.2022.07.358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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La néphropathie oxalique : une cause rare d’insuffisance rénale aiguë chez un diabétique. Nephrol Ther 2022. [DOI: 10.1016/j.nephro.2022.07.387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Vascularite à anticorps anti-membrane basale glomérulaire secondaire au Covid-19 : observation inédite ! Rev Med Interne 2022. [PMCID: PMC9212730 DOI: 10.1016/j.revmed.2022.03.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Introduction La maladie des anticorps anti-membrane basale glomérulaire (Ac anti-MBG) est une affection auto-immune médiée par des anticorps dirigés conte la MBG et alvéolaire définissant le syndrome pneumo rénal. Plusieurs facteurs environnementaux ont été incriminés dans la genèse de cette maladie notamment les infections virales des voies respiratoires. Nous rapportons le cas d’une maladie à Ac anti-MBG survenue suite à une infection par le Sars Cov2. Observation Patiente âgée de 56 ans, non tabagique, suivie pour une insuffisance antéhypophysaire sous traitement substitutif, qui a consulté aux urgences pour fièvre, rhinorrhée, toux, diarrhée avec douleurs abdominales diffuses et oligurie évoluant depuis 02 semaines. L’examen objectivait une fièvre à 39 °C, un état hémodynamique stable, une pression artérielle à 11/06 mmHg et une tachycardie à 110 bpm. La saturation pulsée de l’oxygène était à 95 % à l’air ambiant. Elle présentait des œdèmes des 2 membres inférieurs de type rénal. Les bandelettes urinaires ont objectivé une hématurie à 2 croix associée à une protéinurie à 2 croix. Le reste de l’examen était sans anomalies. La patiente présentait à la biologie une créatinine à 1295 μmol/L, une protéinurie de 24 heures à 1 g, un syndrome inflammatoire et une anémie hypochrome microcytaire. L’échographie rénale a objectivé des reins de taille normale avec une bonne différenciation cortico-médullaire. Devant les signes respiratoires et la fièvre, une infection par le Sars-Cov2, fortement suspectée vue le contexte pandémique, était confirmée par un test PCR. Par ailleurs, devant l’insuffisance rénale aiguë, la patiente a eu des séances d’hémodialyse et une ponction biopsie rénale avec étude en immunofluorescence montrant une glomérulonéphrite extra-capillaire associée à des dépôts linéaires d’IgG et une nécrose fibrinoïde. Les étiologies toxiques, iatrogènes, infectieuses (hormis la Covid) et néoplasiques étaient éliminées. Devant ce tableau clinico-biologique, histologique et la positivité du bilan immunologique montrant des Ac anti-MBG positif à 3+ des anticorps antimyéloperoxydase positif à 2+ associés à une cryoglobulinémie positive, le diagnostic de maladie des Ac anti-MBG était retenu. Un complément d’exploration par fibroscopie bronchique avec lavage broncho-alvéolaire était en faveur d’une hémorragie intra-alvéolaire avec un score de Golde à 102. La patiente a reçu donc des boli de méthylprednisolone à la dose de 800 mg/j durant 3 jours, relayés par une corticothérapie orale à la dose de 1 mg/kg/j associés aux échanges plasmatiques et à l’hémodialyse. Après guérison de l’infection COVID-19, des cures de cyclophosphamide ont été initiées. L’évolution sur le plan rénal était marquée par le passage au stade terminal de l’insuffisance rénale chronique nécessitant l’épuration extrarénale régulière. Conclusion Plusieurs cas de vascularite post infection Covid-19 ont été rapportés dans la littérature. Les mécanismes physiopathologiques responsables de cette association restent jusque-là mal élucidés. Ainsi, devant toute anomalie du sédiment urinaire et/ou de la fonction rénale survenant au cours ou au décours de la maladie Covid-19, une vascularite doit impérativement être évoquée afin d’instaurer un traitement adapté le plutôt possible, seul garant d’un meilleur pronostic.
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POS-685 SARS-COV2 INFECTION IN PATIENTS ON PERITONEAL DIALYSIS. Kidney Int Rep 2022. [PMCID: PMC8854967 DOI: 10.1016/j.ekir.2022.01.719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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MO202RITUXIMAB TREATMENT IN NEPHROLOGY. Nephrol Dial Transplant 2021. [DOI: 10.1093/ndt/gfab092.0080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background and Aims
The B cells have a central role in the pathogenesis of several renal pathologies. Rituximab, a monoclonal antibody directed against the CD20 receptor expressed on the surface of B cells is an interesting alternative to conventional treatments of kidney pathologies.
Method
We conducted a descriptive retrospective study of the use of rituximab in nephrology patients.
Results
We collected 25 patients including 12 women and 13 men. The mean age was 33,5 [16-55] years. The rituximab was indicated for an extramembranous glomerulopathy in 6 patients, a focal segmental glomerulosclerosis in 4 patients, a minimal change disease in 4 patients, a lupus nephritis in 5 patients, and a granulomatosis with polyangiitis in 2 patients. Four kidney transplant patient received rituximab for the treatment of antibody mediated rejection in 3 cases and large cell lymphoma in 1 case.
The average time between the diagnosis of the renal disease and starting treatment with rituximab was of 76 +/- 46,5 months. And it was of 16 [ 0,7 ; 59,8] months after transplantation in kidney transplant recipients.
Side effects have been observed in 11 cases (44%). A favorable response has been obtained in 10 cases (40 %), within an average of 2,27 months, with at least one relapse in 4 cases. The follow-up time was 36,33 +/- 31,67 months.
Conclusion
Rituximab has been shown to be helpful in several cases of kidney disease. It may reduce the need for maintenance immunosuppression and help in some cases that are refractory to other therapies.
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[Etiologies and prognostic factors of acute interstitial nephritis]. Nephrol Ther 2021; 17:114-119. [PMID: 33485789 DOI: 10.1016/j.nephro.2020.10.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/21/2020] [Accepted: 10/26/2020] [Indexed: 12/29/2022]
Abstract
INTRODUCTION Acute interstitial nephritis represents a clinically and etiologically heterogeneous group of kidney diseases. The aim of our study was to explore the main causes of biopsy-proven acute interstitial nephritis and to identify predictive factors of renal outcome. METHODS We conducted a retrospective monocentric study which included patients with biopsy proven AIN, followed in our department during the period between 1980 and 2018. The non-recovery of kidney function or an estimated glomerular filtration rate˂60 mL/min/1.73 m2 were considered as a worse renal outcome. RESULTS A total of 65 acute interstitial nephritis patients were enrolled. The mean age of patients was 41.3±16 years with a female predominance (78%). Drug-induced etiology was the most common (29%). The most frequent culprit drugs in our study were NSAID followed by antibiotics. The renal prognosis was unfavorable in 21 cases (32%). The independent predictive factors for renal outcome were : a percentage of sclerotic glomeruli greater than 15% (P=0.004), absence of interstitial edema (P˂0.001), non-use to corticosteroid therapy (P=0.02) and a delay in initiating corticosteroid therapy greater than 21 days (P=0.02). CONCLUSION Drugs currently represent the most common cause of acute interstitial nephritis. The renal prognosis is often favorable, but the progression can be towards chronic renal failure in the event of diagnostic and therapeutic delay. Our data suggest a beneficial influence of steroids on the outcome of acute interstitial nephritis.
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Pronostic rénal du syndrome hémolytique et urémique de l’adulte. Nephrol Ther 2020. [DOI: 10.1016/j.nephro.2020.07.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tubulointerstitial nephritis due to sarcoidosis: Clinical, laboratory, and histological features and outcome in a cohort of 24 patients. SAUDI JOURNAL OF KIDNEY DISEASES AND TRANSPLANTATION 2020; 30:1276-1284. [PMID: 31929274 DOI: 10.4103/1319-2442.275471] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Renal involvement is rare in systemic sarcoidosis. Among renal manifestations, tubulointerstitial nephritis (TIN) is the most commonly reported finding. We conducted the current study to investigate the clinical, laboratory, and histological features and to analyze the outcome of TIN due to sarcoidosis. We present a retrospective, single-center study of patients followed for sarcoidosis and presenting with TIN related to this systemic disease. Twenty-four patients were assessed (22 females/2 males). The mean age at diagnosis of TIN was 46.3 years. Extrarenal manifestations were dominated by thoracic involvement (95.8%), peripheral lymph nodes (54.2%), and skin lesions (33.3%). The mean proteinuria level was 0.68 g/24 h. Renal failure was diagnosed in 83.3% of cases with a median estimated glomerular filtration rate at 14.3 mL/min/1.73 m2. Nine patients presented with hypercalcemia and 12 patients with hypercalciuria. Renal biopsy was performed in 58.3% of cases. Six of the 14 patients presented with noncaseating granulomatous interstitial nephritis and eight with interstitial nephritis without granuloma. Granulomatous infiltration of renal parenchyma was complicated by vasculitis in two cases. Corticosteroid therapy was used in all patients. On follow-up analysis, four patients progressed to end-stage renal disease (ESRD) after a mean duration at 45.5 months. In the remaining patients, kidney function statistically significantly improved after one month of treatment compared to the time when the diagnosis was initially established (P = 0.031). We found that the predictive factors of progression to ESRD were multiorgan involvement (P = 0.032), advanced fibrosis F3 (P = 0.0006), and extensive interstitial granulomas (P = 0.007) and these were independently correlated with ESRD. Corticosteroid therapy seems to be effective in sarcoid TIN, but some degree of persistent renal failure is possible which can be predicted from both histologic findings and initial response to steroid therapy.
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Simultaneous acute pancreatitis and angioedema associated with angiotensin-converting enzyme inhibitor. SAUDI JOURNAL OF KIDNEY DISEASES AND TRANSPLANTATION 2020; 30:1479-1484. [PMID: 31929301 DOI: 10.4103/1319-2442.275498] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Angiotensin-converting enzyme inhibitors (ACEI) are commonly prescribed drugs for blood pressure (BP) control and renal protection. The use of ACEI is not associated with an increased risk of acute pancreatitis and ACEI-induced angioedema is rare. A 36-year-old woman presented with vomiting, headache, and aphasia. Her BP was 220/100 mm Hg. urine analysis revealed proteinuria (2+), hematuria (3+). Serum creatinine level was at 1125 μmol/L. She had anemia with 6.1 g/dL of hemoglobin and thrombocytopenia (61,000/mm3). Renal histology revealed lesions of thrombotic microangiopathy. The diagnosis of atypical hemolytic uremic syndrome was made by the complement factor I deficiency. Plasma exchanges could not be done. She was placed on peritoneal dialysis for renal insufficiency. We introduced an ACE (captopril) for the treatment of high BP. Twelve-hours after taking the first dose, she experienced severe epigastric pain and two episodes of vomiting. Serum lipase was 560 IU/L, and abdominal computed tomography showed Stage B pancreatitis. Twenty-four hours later, the patient developed marked edema of the neck region without dyspnea or dysphonia. Cervical ultrasound revealed the infiltration of the subcutaneous tissues. Captopril was stopped with the progressive disappearance of the edema. Serum lipase was 350 IU/L and then normalized at the end of the 4th day. Clinicians should be careful about widely used drugs and their side effects. ACEI can cause potentially life-threatening complications such as angioedema and acute pancreatitis. Possibly, there could be a common mechanism for the onset of pancreatitis and angioedema under ACEI.
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P0132DIAGNOSIS OF HYPEROXALURIA FROM RENAL BIOPSY. Nephrol Dial Transplant 2020. [DOI: 10.1093/ndt/gfaa142.p0132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background and Aims
Crystal-induced kidney disease refers to kidney injury caused by intratubular crystal deposition. The most common forms of crystalline nephropathy encountered in renal pathology are nephrocalcinosis and oxalate nephropathy. The purpose of our study is to determine the epidemiological and clinical characteristics of hyperoxaluria diagnosed from renal biopsy.
Method
We retrospectively reviewed all kidney biopsy specimens evaluated at renal pathology laboratory, from 1976 to 2019. The biopsy specimens were received from multiple medical department and medical centers. We studied 8900 biopsy specimens and we were focused on patients whose diagnosis of hyperoxaluria was made from renal biopsy
Results
We identified 25 cases (15 children and 10 adults) with a sex ratio H / F of 0.9. Mean age at diagnosis was 17.2 years old [4 months-73 years old]. Most patients were offspring of consanguineous mating (14 of 25) with intermarriage of first-degree cousins being the most common pattern. A family history of chronic kidney disease was found in 13 patients: indeterminated nephropathy (n = 6) and renal stone (n = 5) and primary hyperoxaluria (n=2). Among our patients, five had a history of urolithiasis. One patient had a history of chronic diarrhea related to Crohn's disease and one patient had a history of cephalic pancreatectomy and ileal resection. Initial symptoms and signs were dominated by renal failure (n = 25) with mean creatinine of 789.5 μmol / l [306-1832μmol / l], associated with proteinuria in 10 patients and hematuria in 11 patients. Arterial hypertension was present in 4 patients. Oligo anuria was reported in 4 patients without dilation of the urinary excretory pathways. In our patients, the diagnosis of crystalin nephropathy was revealed by renal biopsy. In one case, the diagnosis was made after renal transplant. In 4 cases the diagnosis was made by postmortem kidney biopsy. In all cases, the kidney biopsy specimen showed extensive intratubular crystal deposition and tubulointerstitial mononuclear cell infiltration with features of tubular injury and interstitial fibrosis. Examination of histologic slides showed colorless refractile crystals of polygonal appearance. Multicolored birefringence under polarized light identified these crystals as calcium oxalate. After different investigations (genetic and biological analysis), the diagnosis of hyperoxaluria was confirmed. Hyperoxaluria was primary in 23 patients and secondary in 2 patients.
Conclusion
Hyperoxaluria is a rare condition, often serious, involving renal prognosis and sometimes life-threatening, especially in early-onset forms. Early diagnosis and treatment should be done as soon as possible to slow the progression to end-stage renal failure. In patients with renal insufficiency, the diagnosis of hyperoxaluria is difficult. Renal biopsy can help when clinical and radiological data are not sufficient.
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SUN-365 LUPUS NEPHRITIS: EPIDEMIOLOGICAL, CLINICAL, BIOLOGICAL, PATHOLOGICAL FINDINGS, OUTCOMES AND PROGNOSTIC FACTORS. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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SUN-177 HYPERTENSION AND RENAL DISEASE IN SYSTEMIC LUPUS ERYTHEMATOSUS. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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SUN-447 MORBIDITY AND MORTALITY OF SICKLE CELL DISEASE PATIENTS WITH CHRONIC KIDNEY DISEASE. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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SUN-431 TUBERCULOSIS IN PATIENTS WITH LUPUS NEPHRITIS. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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SUN-173 HYPERTENSION BEFORE AND AFTER TREATMENT OF CONN’S ADENOMA. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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SAT-458 PRIMARY HYPERALDOSTERONISM AND RENAL CALCULI: ACCIDENTAL ASSOCIATION OR CAUSE AND EFFECT RELATIONSHIP. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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[Inherited kidney stones: A nephrology center experience]. Prog Urol 2019; 29:962-973. [PMID: 31537493 DOI: 10.1016/j.purol.2019.08.262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 07/06/2019] [Accepted: 08/06/2019] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Genetic factors must be considered in etiological diagnosis of urinary lithiasis. The aim of this study was to determine clinical, metabolic characteristics and the progression of hereditary urinary lithiasis in our patients. METHODS A retrospective study was conducted between 2008 and 2018 and 60 patients were included. Patients were referred to our department from pediatrics departments to be followed-up in adulthood in 9 cases, for etiological investigation in 42 cases and for chronic renal failure in 9 cases. RESULTS Thirty-five men and twenty-five women were enrolled in this study with a M/F sex ratio equal to 1.4. The mean age at the time of diagnosis of the hereditary character of the urinary lithiasis was 28.6years (3months-63years). The average delay between the onset of the lithiasis disease and the etiological diagnosis was 8years (0-42years). We noted 31 cases of cystinuria, 18 cases of primary hyperoxaluria type 1 with two mutations (I244T in 14 cases, 33-34 Insc in 23 cases) and 11 cases of renal tubulopathy. Fourteen patients were affected with chronic renal failure, of which five were in the end-stage renal disease. Crystalluria was positive in 62% of cases. The morpho-constitutional analysis of stones was performed in 37 cases and it contributed to the diagnosis in 29 cases. After an average follow-up of 16years, we noted normal renal function in 42 cases, chronic renal failure in 7 cases, hemodialysis in 10 cases all with primary hyperoxaluria and transplantation in 1 case. CONCLUSION The etiological diagnosis of hereditary urinary lithiasis in our study was made with considerable delay. Cystinuria was the most frequent etiology and primary hyperoxaluria was the most serious affection. LEVEL OF EVIDENCE 4.
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Néphropathie lupique : aspect épidémiologique, clinico-biologique, histologique, évolutif et facteurs pronostiques. Nephrol Ther 2019. [DOI: 10.1016/j.nephro.2019.07.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Acute kidney injury with granulomatous interstitial nephritis and vasculitis revealing sarcoidosis. SAUDI JOURNAL OF KIDNEY DISEASES AND TRANSPLANTATION 2019; 28:1157-1161. [PMID: 28937078 DOI: 10.4103/1319-2442.215120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Sarcoidosis is an inflammatory disease that affects mostly the lungs and lymph glands. Renal involvement is rare and especially vasculitis. We report a case who presented an acute kidney failure and had sarcoidosis with vasculitis and nodular splenic involvement. A 35-year-old woman presenting a Lofgren syndrome was hospitalized for acute renal failure with cervical lymphadenopathy without other clinical findings. Laboratory data disclosed elevated angiotensin converting enzyme serum level. Abdominal ultrasound showed a multinodular spleen. Renal histology revealed granulomatous interstitial nephritis with necrotizing vasculitis. Outcome was favorable after the institution of high dose corticosteroids along with cyclophosphamide. Renal involvement is rare in sarcoidosis. However, the diagnostic delay should be avoided to improve the outcome.
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SP130KIDNEY INVOLVEMENT IN MALIGNANT LYMPHOMA. Nephrol Dial Transplant 2019. [DOI: 10.1093/ndt/gfz103.sp130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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SP139SEVERE INFECTION IN ANTINEUTROPHIL CYTOPLASMIC ANTIBODY-ASSOCIATED VASCULITIS. Nephrol Dial Transplant 2019. [DOI: 10.1093/ndt/gfz103.sp139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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[77] Adult urinary lithiasis and chronic renal insufficiency in 32 cases. Arab J Urol 2019. [DOI: 10.1016/j.aju.2018.10.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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[78] Idiopathic hypercalciuria complicated by polyuropolydipsic syndrome during pregnancy. Arab J Urol 2019. [DOI: 10.1016/j.aju.2018.10.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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[Renal prognosis of IgA vasculitis nephritis in adult patients: a monocentric study of 25 cases]. Pan Afr Med J 2019; 31:9. [PMID: 30923593 PMCID: PMC6431421 DOI: 10.11604/pamj.2018.31.9.10594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 02/27/2018] [Indexed: 11/18/2022] Open
Abstract
La néphropathie de la vascularite à IgA conditionne le pronostic de cette affection chez l’adulte. Le but de notre étude était d’étudier les caractéristiques cliniques de cette atteinte rénale chez l’adulte et d’identifier les facteurs de pronostic rénal. Il s’agit d’une étude monocentrique rétrospective portant sur les patients ayant une vascularite à IgA (purpura rhumatoïde) (critères de l’EULAR) avec une atteinte rénale prouvée histologiquement et classée selon la classification de Pillebout. Nous avons analysé la survie rénale et identifier les facteurs de pronostic rénal. Vingt cinq patients ont été inclus (genre ratio M/F = 2,57) d’âge moyen au diagnostic du purpura rhumatoïde de 35,76 ans. Un purpura était présent dans 100% des cas avec une atteinte articulaire dans 28%. Une insuffisance rénale était présente dans 44% des cas. La classification histologique la plus fréquente était la classe II. Une rémission clinique a été observée dans 44% des cas et une évolution vers le stade terminal de l’insuffisance rénale chronique dans 36% des cas. La survie rénale à 195 mois était de 57%. Les facteurs pronostiques identifiés étaient l’atteinte digestive (p = 0,022), l’insuffisance rénale initiale (p = 0,0004), la classification glomérulaire (p = 0001) et la sévérité des lésions histologiques, le traitement par bloqueurs du système rénine angiotensine (p = 0,01) et les échanges plasmatiques (p = 0,03). Notre étude montre que l’atteinte rénale au cours des vascularites à IgA peut être relativement sévère avec un mauvais pronostic rénal. L’identification des facteurs pronostiques cliniques et histologiques pourrait guider l’élaboration d’études thérapeutiques prospectives.
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Clinical study on autosomal dominant polycystic kidney disease among North Tunisians. SAUDI JOURNAL OF KIDNEY DISEASES AND TRANSPLANTATION 2019. [DOI: 10.4103/1319-2442.252908] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Clinical study on autosomal dominant polycystic kidney disease among North Tunisians. SAUDI JOURNAL OF KIDNEY DISEASES AND TRANSPLANTATION 2019; 30:175-184. [PMID: 30804279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary renal disease, which usually manifests in adulthood. It is characterized by the development of multiple cysts in the kidneys and many other extrarenal manifestations. We aimed to determine the factors that contribute to the progression of ADPKD to end-stage renal disease (ESRD). In a retrospective multicentric study, we reviewed the records of 569 patients with ADPKD, hospitalized at a nephrology department or followed up at the outpatient department of university and regional hospitals, covering the north and center of the country, during the period 1969-2016. The mean age of the study patients was 48.54 ± 13.68 years and 14% were young adults (<40 years). There were 272 female and 297 male patients (sex ratio: male/female = 1.09). A family history of ADPKD was found in 43.7% of cases. Renal symptoms were dominated by loin pain, renal failure, hypertension, and hematuria, seen in, respectively, 51.9%, 48.2%, 29.1%, and 24.6% of the patients. The median serum creatinine level was 459 μmol/L (range: 47-2454), and hypertension had preceded the onset of ADPKD in 28.8% of cases. Extrarenal manifestations consisted of urologic complications (54.6%), liver cysts (43.5%), cardiac involvement (31.9%), cerebral aneurysms (12.9%), and gastrointestinal involvement (9.4%). ESRD occurred in 43.1% after a mean follow-up of 47 months (range: 0-384). Risk factors for poor renal prognosis were age >40 years (P = 0.009), hematuria (P = 0.034), hemoglobin >14 g/dL (P = 0.0013), high uric acid level (P = 0.001), and leukocyturia (P = 0.02). Death occurred in 59 cases (10.3%), mostly caused by infections (44.1%). In our study, ADPKD was lately diagnosed in most cases. Family screening is important, which will enable early detection and management of the complications associated with ADPKD.
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Management of urolithiasis in living kidney donors. LA TUNISIE MEDICALE 2019; 97:140-144. [PMID: 31535706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND Kidney donors with asymptomatic stones were previously excluded from the kidney donation list because of a potential increased morbidity risk for both the recipient and the donor. Currently, recent studies tend to consider these risks as overestimated. AIM The aim of this study was to analyze our experience in the management of urolithiasis in potential donors. METHODS We conducted a retrospective analysis during the period (2008-2015). We included donors with urilithiasis or a family history of urolithiasis whom had urinary biochemical analysis of urolithiasis. We identified the exact location, size, and anatomy of the kidney bearing the stone were identified. RESULTS Among 252 potentially proposed living kidney donors (LKD) in two renal transplantation centers, we noted urinary lithiasis in 8 patients (3.17%). The mean age was 40,12±20 years old with a sex-ratio M/F at 0,3. We noted urinary lithiasis on radiographs in one case, on echographs in one case and on computerized tomography kidney angiography in 5 cases. All are not obese and without any medical history. In one case, there was no lithiasis detected but chemical urinary analysis was performed because of family renal stone history. We performed a 24-hours urine test, and examined PH, calcium and oxalate. The urine analysis, showed acidic pH and hypercalciuria in all cases associated to weddelite in 3 cases, hyperoxaluria in all cases. In one case, we noted vitamin D deficiency related hyperparathyroidism. Renal transplantation has been achieved in two cases. After a mean follow up of 11,25 months [range :27-84], no urological complications were noted. CONCLUSION Urinary lithiasis may occur in proposed living kidney donors and may not contraindicate this donation.
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Profil immunologique de l’endocardite infectieuse. Rev Med Interne 2018. [DOI: 10.1016/j.revmed.2018.10.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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[76] Hereditary kidney stones: An experience of a nephrology department. Arab J Urol 2018. [DOI: 10.1016/j.aju.2018.10.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Microangiopathie thrombotique et glomérulonéphrite à anticorps anti-membrane basale glomérulaire : à partir de 3 biopsies rénales. Nephrol Ther 2018. [DOI: 10.1016/j.nephro.2018.07.259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Profil étiologique des néphropathies interstitielles aiguës : à propos de 46 malades. Nephrol Ther 2018. [DOI: 10.1016/j.nephro.2018.07.274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Anticoagulation préventive au cours du syndrome néphrotique. Nephrol Ther 2018. [DOI: 10.1016/j.nephro.2018.07.339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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40
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Néphropathie lupique séronégative. Nephrol Ther 2018. [DOI: 10.1016/j.nephro.2018.07.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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41
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La néphropathie de reflux : une néphropathie silencieuse. Nephrol Ther 2018. [DOI: 10.1016/j.nephro.2018.07.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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42
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La lithiase urinaire (LU) héréditaire de l’adulte. Nephrol Ther 2018. [DOI: 10.1016/j.nephro.2018.07.210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Lithiase urinaire de l’adulte et insuffisance rénale chronique : à propos de 32 cas. Nephrol Ther 2018. [DOI: 10.1016/j.nephro.2018.07.338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Atteintes glomérulaires au cours du myélome multiple : facteurs prédictifs et étude de survie. Nephrol Ther 2018. [DOI: 10.1016/j.nephro.2018.07.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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45
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Oedème induit par l’insuline : à propos d’un cas. Rev Med Interne 2018. [DOI: 10.1016/j.revmed.2018.03.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Nephrolithiasis in living kidney donor: experience of nephrologists. LA TUNISIE MEDICALE 2018; 96:97-100. [PMID: 30324973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND Living kidney donation for transplantation has become common practice. The decisions to accept a donor with nephrolithiasis are becoming frequent. AIM The aim of our study was to report our experience in the living donor kidney with asymptomatic lithiasis. METHODS Over a period of 4 years from 2009 to 2013 we collected 18 cases. From the clinical, metabolic and radiological data, we have determined the etiology of urolithiasis in our patients and established, after a literature review, a decision tree of kidney donation. RESULTS Our study included 10 women and 8 men with a mean age of 43 years. The nephrolithiasis was discovered incidentally during radiological assessment through the urinary tract without preparation in 1 case, the abdominal ultrasound in 6 cases and the abdominal CT scan in 11 cases. The donation of kidney in our study was performed in 1 case and disqualified in the others cases especially for metabolic abnormalities. In the single couple donor-recipient, after a follow up of 5 years; we have not identified adverse side effects either in the donor or in the recipient patient. CONCLUSION In living donors with nephrolithiasis the final decision of renal transplantation must be based on the confrontation between the clinical, biological and radiological data. Metabolic disorders constituted the mainly contraindication of kidney donation in our patients.
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Management of acute pyelonephritis. LA TUNISIE MEDICALE 2018; 96:42-47. [PMID: 30324991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Acute pyelonephritis (APN) results from bacterial invasion of the renal parenchyma. The aim of this study was to investigate the epidemiological, clinico-biological, therapeutic and evolutionary APN and to identify the risk factors of this renal disease. METHODS We conducted a retrospective and descriptive study, over a period of 37 years (1977-2014), including 43 patients with APN, hospitalized in our Department. RESULTS There were 43 patients with mean age of 36.98 years. The sex ratio M/W was 0.39. The history of our patients was diabetes (16.28%), recurrent urinary tract infection (25.58%), chronic kidney failure (CKF) (46.51%), Renal lithiasis (9.3%), malformative uropathy (9.3%) and immunosuppressive therapy (23.3%). Typical clinical triad (fever, back pain and urinary functional signs) was present in 25 patients (58.14%). The Gram-negative bacilli represented 97.67% of bacteria isolated in urine culture, dominated by Escherchia coli in 83.72% of cases. APN was simple in 19 cases (44.18%) and at risk of complications in 24 cases (55.81%). Thirty-nine patients (90.69%) had non-severe APN. Four patients (9.3%) had severe APN. Complications were found in 30.23% of cases: acute renal failure (ARF) (30.23%), renal abscess (2.33%), septic shock (4.65%). Risk factors for developing ARF were the higher age group to 60 years (p = 0.02) and CKF (p = 0.001). A significant correlation was found between vesicoureteral reflux and recurrent infections (p = 0.01). Five years renal survival was 69%. CONCLUSION APN induced ARF is a serious risk for progression to CKF.
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Pronostic de l’amylose AL concomitante au myélome multiple. Nephrol Ther 2017. [DOI: 10.1016/j.nephro.2017.08.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Facteurs prédictifs de morbi-mortalié au cours des pyélonéphrites aiguës. Nephrol Ther 2017. [DOI: 10.1016/j.nephro.2017.08.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Profil histologique et évolutif de l’hypertension artérielle chez les patients atteints d’une néphropathie lupique. Nephrol Ther 2017. [DOI: 10.1016/j.nephro.2017.08.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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